求助各位老师,如图我想实现这样的一个回归,其中的解释变量是被解释变量同行业-不同地区、不同行业-同地区、同行业-同地区-除去被解释变量本身的等权重组合,我应该如何将例如 investment的同行业-不同地区的组合的数据计算出来呢?其中,i为行业、a为地区、j为公司、p为组合、t为时间,数据中我的地理位置为邮编。
刚开始学习,在论坛中查找目前没找到类似的贴子,只能自己发一个,希望各位老师能帮我解答一下!
- * Example generated by -dataex-. To install: ssc install dataex
- clear
- input long Stkcd float Accper str1 Indcd1 long code
- 1 2017 "J" 518001
- 1 2018 "J" 518001
- 1 2019 "J" 518001
- 2 2017 "K" 518083
- 2 2018 "K" 518083
- 2 2019 "K" 518083
- 4 2017 "C" 518045
- 4 2018 "C" 518045
- 5 2017 "K" 518001
- 5 2018 "K" 518001
- 6 2018 "K" 518008
- 6 2019 "K" 518008
- 7 2018 "H" 518031
- 8 2017 "C" 518064
- 8 2018 "C" 518064
- 8 2019 "C" 518064
- 9 2017 "S" 518020
- 9 2018 "S" 518020
- 10 2017 "E" 100044
- 10 2018 "E" 100044
- 11 2017 "K" 518014
- 11 2018 "K" 518014
- 11 2019 "K" 518014
- 12 2017 "C" 518067
- 12 2018 "C" 518067
- 14 2017 "K" 518053
- 14 2018 "K" 518053
- 14 2019 "K" 518053
- 16 2017 "C" 518057
- 16 2018 "C" 518057
- 16 2019 "C" 518057
- 17 2017 "C" 518131
- 17 2018 "C" 518131
- 18 2017 "C" 100176
- 18 2018 "C" 100176
- 19 2018 "C" 518057
- 20 2017 "C" 518000
- 20 2018 "C" 518000
- 21 2017 "C" 518035
- 21 2018 "C" 518035
- 21 2019 "C" 518035
- 23 2017 "C" 518057
- 23 2018 "C" 518057
- 25 2017 "F" 518031
- 25 2018 "F" 518031
- 25 2019 "F" 518031
- 26 2017 "F" 518057
- 26 2018 "F" 518057
- 27 2017 "D" 518031
- 27 2018 "D" 518031
- 28 2017 "F" 518029
- 28 2018 "F" 518029
- 28 2019 "F" 518029
- 30 2017 "C" 130011
- 30 2018 "C" 130011
- 30 2019 "C" 130011
- 31 2018 "K" 518048
- 31 2019 "K" 518048
- 32 2017 "F" 518057
- 32 2018 "F" 518057
- 32 2019 "F" 518057
- 34 2018 "S" 518101
- 34 2019 "S" 518101
- 35 2018 "N" 226600
- 36 2017 "K" 518031
- 36 2018 "K" 518031
- 37 2017 "D" 518053
- 37 2018 "D" 518053
- 37 2019 "D" 518053
- 38 2017 "K" 518000
- 38 2018 "K" 518000
- 38 2019 "K" 518000
- 39 2017 "C" 518067
- 39 2018 "C" 518067
- 39 2019 "C" 518067
- 40 2017 "K" 518001
- 40 2018 "K" 518001
- 42 2017 "K" 518054
- 42 2018 "K" 518054
- 43 2017 "K" 518031
- 43 2018 "K" 518031
- 45 2017 "C" 518031
- 45 2018 "C" 518031
- 45 2019 "C" 518031
- 46 2017 "K" 100005
- 46 2018 "K" 100005
- 48 2017 "C" 518048
- 48 2018 "C" 518048
- 49 2017 "C" 518057
- 49 2018 "C" 518057
- 49 2019 "C" 518057
- 50 2017 "C" 518052
- 50 2018 "C" 518052
- 50 2019 "C" 518052
- 55 2017 "C" 518057
- 55 2018 "C" 518057
- 55 2019 "C" 518057
- 56 2018 "K" 518100
- 58 2017 "L" 518028
- 58 2018 "L" 518028
- end


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